<template>
    <div class="todo-footer" v-show="total">
        <label>
            <!-- <input type="checkbox" :checked="isAll" @change="checkAll" /> -->
            <input type="checkbox" v-model="isAll" />
        </label>
        <span>
            <span>已完成{{ doneTotal }}</span> / 全部{{ total }}
        </span>
        <button class="btn btn-danger" @click="clearAll">清除已完成任务</button>
    </div>
</template>

<script>
export default {
    name: "TdFooter",
    props: ["todos"],
    methods: {
        /* checkAll(e) {
            // console.log(e.target.checked);
            this.checkAllTodo(e.target.checked);
        }, */
        clearAll() {
            // this.clearAllTodo();
            this.$emit("clearAllTodo");
        },
    },
    computed: {
        total() {
            return this.todos.length;
        },
        doneTotal() {
            /* let i = 0;
            this.todos.forEach((todo) => {
                if (todo.done) i++;
            });
            return i; */
            return this.todos.reduce(
                (pre, current) => pre + (current.done ? 1 : 0),
                0
            );
        },
        /* isAll() {
            return this.doneTotal === this.total && this.total > 0;
        }, */
        isAll: {
            get() {
                return this.doneTotal === this.total && this.total > 0;
            },
            set(value) {
                //this.checkAllTodo(value);
                this.$emit("checkAllTodo", value);
            },
        },
    },
};
</script>

<style scoped>
/*footer*/
.todo-footer {
    height: 40px;
    line-height: 40px;
    padding-left: 6px;
    margin-top: 5px;
}

.todo-footer label {
    display: inline-block;
    margin-right: 20px;
    cursor: pointer;
}

.todo-footer label input {
    position: relative;
    top: -1px;
    vertical-align: middle;
    margin-right: 5px;
}

.todo-footer button {
    float: right;
    margin-top: 5px;
}
</style>